CATDOLL : CATDOLL: Silverfish are extremely valuable and expensive. What should we pay attention to when breeding silverfish?

1. Silverfish are of extremely high value and very expensive. What should we pay attention to when breeding silverfish?

Silverfish are of extremely high value and very expensive. What should we pay attention to when breeding silverfish?

Whitebait is small and delicate, and has poor competitiveness. To ensure successful stocking, the following points should be noted when selecting stocking fish:

1. Area. From the perspective of the water surface that has been reserved, there are successful examples ranging from thousands of acres to hundreds of thousands of acres. However, from the perspective of group interests, the water surface should be large rather than small. Generally, it ranges from 10,000 acres to 200,000 acres.

2. Water depth. 2 to 20 meters is OK, but 5 to 15 meters is better. Because whitebait is a pelagic fish, it is easy to trawle.

3. Bottom material: Silverfish eggs are sinking eggs, and the entire process of embryonic development is completed at the bottom of the water, so the bottom of the water is required to be gravel or hard sediment.

4. Water body. Water temperature: 0℃ ~ 35℃, transparent bottom: 0.2 ~ 3.5 meters, pH value: 6.5 ~ 9.5.

5. It requires abundant resources of wild small fish and shrimp.

6. Composition of fish fauna. The dominant fish species in the stocking area are bottom fish or other fish-eating species (juvenile bighead carp eat zooplankton, and adult fish eat small fish and shrimp). There are few or no ferocious fish resources that are harmful to large silver fish, such as horsemouth and redfin white shark.

7. Adult fish farming. Generally speaking, fish have a good growth ability and their growth rate is also obvious, so we need to fertilize zooplankton at this time. Fertilizers are usually fermented by farmers, and a certain amount of feeding is controlled, and the dragon is appropriately jumped according to the total amount of good water. Then in the process of breeding, try to avoid floating heads during the period, because the growth of whitebait has a relatively high selection of solution. If the floating heads of whitebait are not handled in time, it will lead to large-scale deaths.

8. Pond requirements. To breed whitebait, you first need to build a pond suitable for the growth of whitebait in advance. It can be said that the requirements are not very generous, and you can even choose an old pond that has been used for breeding before. But at this time, you must ensure that the water in the pond is clean and the place is ventilated. It is best to have certain drainage and irrigation functions. The area and number of ponds should be controlled according to the total amount of whitebait cultured, and the depth of the pond should be controlled between 2.5M~3M and 3M.

The above is all about the high value and high price of silverfish. What should be paid attention to in breeding silverfish? I hope it will be helpful to you.

It is necessary to pay attention to the appropriate temperature, provide them with light, clean and purify the water, pay attention to the frequency of feeding, and pay attention to the quality of feed. These are the key factors that determine the growth of silverfish.

You need to pay attention to the equipment and items needed to breed silverfish. You also need to find a suitable location, set the appropriate temperature, and learn relevant silverfish breeding knowledge so that you can breed silverfish better.

What needs attention is the water quality, timely observation, timely control of the amount, adding some fertilizer, and management.

2. How to learn fish pond farming techniques?

1. Habitat habits: Silverfish live in the middle and lower layers of the pond. Except for lack of oxygen, they are rarely found in the upper layer. If there are water plants around the pond or at the bottom of the pond, they often burrow into them, and even burrow into the bottom mud when disturbed. Juvenile fish have a strong phototaxis and can be lured into groups at night with lights. It can be used to check their growth and feeding conditions. Adult fish do not have phototaxis.

2. Feeding habits: Juvenile fish start eating on the 10th day after hatching, with rotifers as the first food, and gradually choose larger and easier-to-swim zooplankton as food, in the order of nauplii, copepod larvae, cladocerans and adult copepods. Whitebait is carnivorous, and mainly feeds on small fish and shrimps.

3. Reproduction habits In ponds, whitebait can grow and develop normally until their gonads mature and they lay eggs on their own. The development and spawning characteristics of the gonads are basically the same as those in natural waters. In the middle and lower reaches of the Yangtze River, the peak spawning period is from late December to early January. Generally speaking, spawning is more concentrated in hard-bottomed ponds with aquatic plants, and the fertilization rate can reach 80% to 90%.

III. Summary of fishery work in the first half of the year

A summary is a written material that summarizes and generalizes the performance of study, work and life over a period of time. It is a good way to increase your talents. Let's write a good summary. So do you really know how to write a summary? The following is a summary of the fishery work in the first half of the year that I have compiled for you. It is for reference only. Let's take a look.

In accordance with the requirements of the 20xx Regional Fisheries Work Conference xxx Seedling Coordination Meeting, Chifeng City, in light of local conditions, has formulated a practical and feasible annual fishery work plan for 20xx, and has carefully organized and implemented it, completing the established work goals in the first half of 20xx. According to the spirit of the Neiyu Zhengfa [20xx] No. 13 Notice, the following is a summary:

1. Development trend of fishery production and operation in the first half of the year

1. Government support has become a huge driving force for the development of fisheries

In 20xx, the Chifeng Municipal Government still attached great importance to fisheries. In the first half of the year, it continued to allocate agricultural support funds to support the development of fisheries, set an example for all banners, counties and districts, and further improved the status of Chifeng's fisheries. The main areas of support are: strengthening the safety of aquatic products, supporting the construction of aquatic animal disease prevention and control stations in Hongshan District, mobilizing the application for pollution-free aquatic product base certification and product certification; doing a good job in the improvement and introduction of aquatic seedlings, strengthening the construction of aquatic seed farms in Ningcheng County Reshui Fish Seed Farm; adjusting the variety structure, and breeding new varieties in 8 fisheries such as the Qiaobei Town Fishery in Hongshan District. In addition, in July, the deputy mayor of the municipal government will personally lead a team, with the participation of leaders of banners, counties and districts in major fishing areas and heads of key fishery units, to conduct inspections and attract investment in fishery-developed areas, aiming to use foreign funds, technology and management to fully explore the potential of Chifeng's fishery resources, improve the scientific and technological content of fisheries, and accelerate the pace of development. The municipal government's continued emphasis on fisheries has brought new and greater opportunities for the rapid development of the city's fisheries.

2. Marketing of aquatic products

With the continuous improvement of people's living standards and the enhancement of food safety awareness, coupled with the vigorous publicity of the aquatic management department, Chifeng's aquatic products, as green and pollution-free food, are increasingly favored by consumers and have certain price advantages. The price in the first half of 20xx was the same as that in the same period of 20xx, and the same type of fish was more than 2 yuan/kg higher than the aquatic products in other ponds. The market retail prices of local fish above the specification are: grass carp 12-14 yuan/kg, carp 7-8 yuan/kg, crucian carp 7-8 yuan/kg, yarrow 20 yuan/kg, silver carp 7-8 yuan/kg, and silver carp 5-6 yuan/kg. However, due to the lack of a minimum market supervision mechanism and the lack of the ability to distinguish the quality of aquatic products by most consumers, cheap aquatic products from other places still enter the Chifeng market without restraint, and the dumping situation that continues to form has seriously impacted the healthy development of local fisheries. Therefore, it is necessary to accelerate the implementation of the market access system, use quarantine, quality supervision and other fishery measures to ensure the safety of aquatic products, and use non-trade barriers to maintain the order of the aquatic product market. At the same time, we will vigorously adjust the fishery structure to achieve year-round production and off-season sales, and completely change the local fishery's bad habits of releasing fish in spring and catching them in autumn and concentrated listing them, so as to ensure the healthy, sustainable and rapid development of the fishery.

3. Water replenishment in fishery waters

Drought and water shortage are still the main problems restricting the development of fisheries. In the first half of 20xx, the precipitation in Chifeng City was acceptable. 50% of the water surface maintained its original area through water replenishment, which is the main force of fishery production, such as Youqi Dalintai Reservoir, Yihenuoer Reservoir, Caoyuan Reservoir, Keqi Shangwanzi Reservoir, Xiangshui Reservoir, Gangeng Lake, Durinuoer Lake, Aqi Baiyinhua Reservoir, etc. 20% of the water surface has not been reduced in area and can maintain normal fishery production, such as Ningcheng Dahushi Reservoir, Zuoqi Shana Reservoir, Aqi Dalaha Fishery, etc. 30% of the water surface has not recovered to its original area, and some of the water depths are not enough to meet the requirements of fish overwintering. Some bait organisms are lacking, evaporation is too large, salinity is increased, fish grow slowly, and it is difficult to increase the output of aquatic products. Such as Hongshan Reservoir, Aohan Banner Ulanwusu Reservoir, Youqi Baganuo Fishery, Aqi Harichaolu Fishery, Wengqi Buridun Fishery, Qigan Fishery, etc.

4. Implementation of responsibility targets and fishery production

(1) Achieve a total aquatic product output of 4,180 tons (including 1,443 tons of high-quality aquatic products);

(2) 159.7 million snapper fry were released, of which 180.1 million were self-bred;

(3) Implemented semi-intensive aquaculture on small and medium-sized water surfaces of 5,610 mu, cage aquaculture of 1,700 square meters, pen aquaculture of 3.33 million square meters, pond aquaculture of 1,635 mu, whitebait aquaculture of 118,295 mu, and crab aquaculture of 26,955 mu (including 7,000 mu of rice fields and reed ponds).

II. Construction of high-quality aquatic product industry belt in the Xiliaohe River Basin

1. Continue to carry out net pen culture, cage culture on large and medium-sized water surfaces and semi-intensive culture on small and medium-sized water surfaces

Net pen farming is carried out in Youqi Dalintai Reservoir, Yihenuoer Reservoir and Ningcheng Dahushi Reservoir, covering a farming area of ​​3.33 million square meters. The main farmed species are grass carp, Wuchang fish and yellow catfish; cage fish farming is carried out in Hongshan Reservoir, Ningcheng Dahushi Reservoir and Diaoyutai Reservoir, covering an area of ​​1,700 square meters. The main farmed species are grass carp, carp and tilapia; semi-intensive farming on small and medium-sized water surfaces is carried out in Wengqi Dapaozi, Songshan District Shanqian Fishery and Ningcheng Dahushi Reservoir, covering an area of ​​5,610 mu. The main farmed species are grass carp and carp.

2. Continue to focus on transplanting and multiplying high-quality aquatic products

At the beginning of the year, a total of 350 million whitebait eggs were released, covering an area of ​​118,295 mu, including 250 million in Hongshan Reservoir, 50 million in Harichaolu, 20 million in Zasitai Fishery, and 30 million in Shana Reservoir. Due to the continued sluggish market, the price of crab seedlings has risen this year, river crab farming has declined sharply, and the farming area has shrunk sharply to only 26,955 mu. In addition, black carp and yellow catfish have been introduced and released in grassland reservoirs to transform small, low-value wild fish and shrimp. Semi-intensive farming on small and medium-sized water surfaces mainly breeds conventional fish, aiming to explore ways to keep adult fish on the market all year round and seek the best benefits.

3. Adjust aquaculture varieties and develop pond aquaculture of famous and high-quality aquatic products

In the fish farms of Qiaobei Town in Hongshan District, Shanqian in Songshan District, Youqi Grassland Reservoir, Yuanbaoshan Cold Water Fish Farm, Ningcheng County Hot Water Fish Farm, Aqi Wuhe Chaolu, and Keqi Wuyi Irrigation Area Fish Ponds, a total area of ​​1,600 mu, 35 tons of sea bass, black carp, yellow catfish, freshwater silver pomfret, rainbow eagle, colorful crucian carp and river crab were released. Yuanbaoshan District continued to breed salmon and trout using underground drainage water from coal mines, and plans to produce 10 tons of salmon and rainbow trout this year. Ningcheng County Hot Water Fish Farm, while maintaining the production of tilapia, has introduced 3,000 yellow catfish and German mirror carp broodstock, laying a good foundation for next year's production.

4. Recreational fishing

In recent years, Chifeng City has taken recreational fishing as an important part of adjusting the fishery structure. This year, the facilities have been further improved and the service quality has been enhanced in Qiaobei Fishery in Hongshan District, Fish Farm in Linxi County, Fishery in Songshan District, Harqin Sailfish Farm, Youqi Grassland Reservoir, Weng Sailfish Farm and Yuanbaoshan Power Plant Fishery.

5. Aquatic product processing

In the processing of aquatic products, crucian carp and yarrow fish from Dalai Nuori Lake in Keqi, large silver fish from Hongshan Reservoir and Aqi Harichaolu Lake, and crucian carp from Hongshan Reservoir are all packaged in gift boxes and are selling well. The price of crucian carp from Dalai Nuori Lake in Keqi is 12 yuan/kg, the price of yarrow fish is 16 yuan/kg, and the price of crucian carp and grass carp from Hongshan Reservoir is 14 yuan/kg. The total scale of aquatic products processed in the first half of the year was 170 tons. In terms of brand creation, the crucian carp and yarrow fish from Dali Lake in our city have been registered as famous aquatic products in Inner Mongolia. Hongshan Reservoir and Dahushi Reservoir in Ningcheng County

We are currently applying for fish brands such as crucian carp and grass carp.

3. Fishery Administration

On March 22, 20xx, in conjunction with the World Water Day and China Water Week, the Municipal Bureau organized law enforcement officers from the Hongshan District and Songshan District Water Conservancy Bureau to go on the road to publicize relevant laws, post notices, and vigorously create a production atmosphere of governing fisheries by law and promoting fisheries in accordance with the law. All water operators have obtained the "Water Breeding Use Permit". After the aquatic management department has established a file, it will carry out procedural management. This year, verification work will be carried out in a timely manner. The total number of fishing boats in the city is 130, and the number of registered boats is 130, accounting for 100% of the total; 98 fishing boats have been inspected, accounting for 75% of the total.

4. Aquatic product quality management

With the implementation of the "Aquaculture Quality and Safety Management Regulations", our city has further strengthened the work on aquaculture quality and safety, and continued to publicize aquaculture quality and safety knowledge to breeding units and individuals to improve their awareness. This year, another 5 water surfaces have applied for the certification of pollution-free aquatic product production areas, with a total area of ​​40,000 mu.

In terms of disease prevention and control, the water surface where the fish disease was cured in 20xx has not recurred so far. This year, the focus is on strengthening prevention, monitoring and reporting work.

In terms of market access for aquatic products, according to the deployment of the Fisheries Bureau of the Autonomous Region, the instructions of the municipal and district governments, and the current situation of the aquatic product market, with the consent of the Technical Supervision Bureau, the Health Bureau, the Epidemic Prevention Station, the Industry and Commerce Bureau and other departments, we have raised part of the funds to establish the Hongshan District Aquatic Product Quality Supervision and Quarantine Station, aiming to ensure the food safety of aquatic products. At present, the food safety in Chifeng City has received widespread attention from all walks of life. All industries related to food have established and improved disease prevention and control institutions, but the fishery industry is still blank. In 20xx, the food safety of aquatic animals has been identified as an important function of the fishery department of Chifeng City. Through the functional role of the professional aquatic disease prevention and control institutions, the quality and safety of aquatic products in Chifeng City are ensured, and the healthy development of the city's fishery production is promoted. Led by the Municipal Aquatic Station, with the Hongshan District Animal Disease Prevention and Control Station as the base, the production, fishing, transportation, processing and sales of aquatic products in the city are comprehensively managed.

V. Fisheries Science and Technology

This year, the "freshwater ranch technology" was promoted in Wengqi Dapaozi Fishery and Ningcheng Dahushi Reservoir, and the nets and feed formulations were further improved to make them more mature. The single yield of Wengqi Dapaozi Fishery reached 100 kilograms and the total output reached 100 tons. Ningcheng Dahushi Reservoir carried out trial production.

In Sidaowan Town, Aohan Banner, rice field farming is carried out over an area of ​​10,000 mu, with river crabs and carp as the species.

Two training courses on applicable fishery technologies were conducted during the year, training 56 people.

VI. Construction of fishery seedling system

Strengthen the supply of improved species and support the construction of aquatic improved species farms in Ningcheng County Reshui Fish Seedling Farm. In the spring of 20xx, with the recovery of most fishery water areas, the demand for seedlings by breeding units and farmers began to increase. In response to the better seedling market situation, the Ningcheng County Reshui Fish Seedling Farm in Chifeng City made full preparations before the production of water flower fish seedlings. With the strong support of the Autonomous Region Fisheries Bureau, the production conditions were further improved and the production capacity was enhanced. The fish seedling farm carefully arranged the work of cultivating broodstock, cleaning the breeding pond, adjusting the water quality, and contacting users. From early May to mid-June, a total of 80 million water flowers were produced, including 40 million grass carps, 20 million carps, 10 million silver carps, and 10 million bighead carps. In addition to keeping 15% for self-use, the remaining 85% were sold.

According to the requirements of the Autonomous Region Aquatic Seedling Transportation Conference, Chifeng City Fisheries Station has done serious coordination work on seedling transportation. First, we established the idea of ​​the whole region as one chess game, and used the reputation of Chifeng City Fisheries Station for many years to introduce the situation of Tongliao fish seedling early breeding farm in detail and realistically to some users in Chifeng City, and recommended them to Tongliao early breeding farm, so as to achieve resource sharing and win-win situation of supply and demand. Second, we coordinated the Ningcheng County Reshui Fish Seed Farm in Chifeng City to use its location advantages to open up new markets and promote seedlings to Chengde, Tangshan, Pingquan in Hebei, Chaoyang, Lingyuan in Liaoning and other places. Since the emergence time, seedling specifications, quantity, quality, price and sales and after-sales tracking services fully met the requirements of users, the sales were very smooth and the users were quite satisfied. A total of 14 million water splash fish seedlings were sold to Tangshan, Hebei, Xiabancheng, Pingquan in Chengde and other places, and 10 million to Liaoning. After releasing the seedlings, the farmers in Tangshan believed that the grass carp seedlings in hot water were of good quality and sufficient in quantity, and the survival rate after transportation and ponding reached more than 80%, which was 30 percentage points higher than the survival rate of 50% in southern seedlings. They requested to purchase another 10 million grass carp water splashes. However, due to the late time, production adjustment was extremely difficult and could not meet the demand this year. Next year, they plan to expand the production scale and carry out order production. At the same time, according to the demand information fed back by users, the next step of production this year was adjusted. It is expected to sell another 3 million summer flower fish seedlings and 5 tons of autumn fish seedlings to Hebei and Liaoning. The third is to consolidate the local market in Chifeng City, communicate with users in a timely manner, and improve service awareness and quality. A total of 40 million water splash fish seedlings were sold locally.

VII. Fishery infrastructure construction, information reporting, and continued efforts to attract investment

In order to speed up the pace of fishery industrialization, expand production scale, improve enterprise efficiency and coordinate marketing, Aohan Banner and Linxi County have established fishermen's associations, and carried out work such as introducing aquatic seedlings, technical guidance, attracting investment, and developing markets. Chifeng Fishery Association and Crab Farming Association are preparing to be formally established within the year, determine the office location, absorb 30 members, and form a community of interests. Aquatic product market information system has been established in the Municipal Fisheries Station, and a dedicated person will collect, analyze, process, store and send confirmed market information to provide effective services to enterprises at any time, unify market development, and promote joint ventures and cooperation. As of June, 22 pieces of information have been published on the Inner Mongolia Fisheries Information Network, and 46 pieces of information have been delivered to enterprises and farmers.

In order to make up for the lack of funds for fisheries, Chifeng City has continued to strengthen investment promotion. In recent years, the precious fishery resources of Chifeng City have attracted the attention of surrounding investors. In order to ensure the success of the cooperation, the Municipal Fisheries Station participated in the cooperation between the two parties as a third party, signed an agreement based on the principles of legal operation, fairness, mutual benefit, honesty and trustworthiness, and supervised the implementation. It has successively facilitated the cooperation between Caoyuan Reservoir and Panjin in breeding white shrimp, and the cooperation between Sidaowan Town, Aohan Banner, and Wengxia Paozi Fishery and Panjin in breeding river crabs. A total of 800,000 yuan of funds were introduced in the first half of the year. After the city government organized investment promotion in July, the scale of investment promotion can be further expanded.

The preliminary work for Chifeng City’s key projects this year, the “Hongshan District Aquatic Animal Disease Prevention and Control Station” and the “Keqi Darinor Fishery Administration Vessel”, has been completed, and the feasibility study has been submitted to the Autonomous Region Fisheries Bureau, and will be organized and implemented after the project is approved.

8. Problems

1. The aquatic product market is in urgent need of development and improvement. At present, the main problem affecting the development of fisheries in Chifeng City is not technology but the market. Due to differences in technical levels and breeding methods, the low-price dumping of pond fish from other places has been going on for a long time, which has seriously affected the normal development of the city's fisheries. A standardized fishery supervision mechanism should be established to control the dumping of aquatic products from other places through means such as aquatic product quality inspection and quarantine, and to use non-trade barriers to ensure the food safety of aquatic products and improve the comparative benefits of local fisheries. In addition, it is necessary to effectively solve the problem of marketability of aquaculture varieties, and avoid blindly introducing new varieties that cause unsalable products.

2. The breeding method needs to be improved. At present, the fishery production method in our city is to catch fish in autumn and put them on the market in batches. Due to price competition, it is very easy to form a sluggish market and it is difficult to achieve the best economic benefits. Therefore, it is necessary to adopt the method of cage, net pen, and natural water surface semi-intensive breeding to carry out year-round production, so as to achieve a balanced supply to the market all year round and improve economic benefits.

3. Pond conditions are deteriorating. Although the aquaculture area has not decreased much, siltation and leakage are serious. Only more than 3,000 acres can actually be used. The development of pond aquaculture is greatly restricted, and some pond aquaculture varieties and aquaculture technologies cannot be fully introduced and promoted.

IX. Work arrangements for the second half of the year

1. Continue to focus on the later stages of cage farming, net pens, semi-intensive farming on natural water surfaces, pond farming, and rice field farming to ensure that the variety, yield per unit area, and total output meet the standards.

2. Strengthen the construction of aquatic breeding farm system, and focus on supporting the construction of hot water fish breeding farm in Ningcheng County.

3. Strengthen the quality and safety of aquaculture, establish an aquatic animal disease prevention and control station in Hongshan District, and cooperate with the Autonomous Region Fisheries Research Institute to complete water sample testing work at 5 pollution-free aquatic product production areas.

4. Submit 10 pieces of fishery information, reaching more than 30 pieces per year.

5. Strengthen fishery administration to ensure production safety.

6. Carry out fishery investigation well and expand the scale of investment promotion.